Trenton Limestone, City of Ottawa (Ordovician of Canada)

Where: Ontario, Canada (45.5° N, 75.7° W: paleocoordinates 24.4° S, 49.3° W)

• local area-level geographic resolution

When: Hull Member (Ottawa Formation), Katian (453.0 - 445.2 Ma)

• Some taxa specified as collected from the upper half of the Trenton Limestone

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Primary reference: E. Billings. 1857. Report for the year 1856. Geological Survey of Canada - Report of Progress for the Years 1853-56 247-345 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180117: authorized by William Ausich, entered by Lena Cole on 08.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Edrioasteroidea
 Edrioasterida - Edrioasteridae
"Cyclaster bigsbyi" = Edrioaster bigsbyi
"Cyclaster bigsbyi" = Edrioaster bigsbyi Billings 1858
Asteroidea
 Euaxosida - Palasterinidae
"Palaeasterina stellata" = Palasterina, "Palaeasterina rigidus" = Palasterina, "Palaeasterina pulchellus" = Palasterina
"Palaeasterina stellata" = Palasterina sea star
"Palaeasterina rigidus" = Palasterina sea star
"Palaeasterina pulchellus" = Palasterina sea star
Ophiuroidea
 Oegophiurida - Lapworthuridae
"Palaeocoma cylindrica" = Hallaster cylindricus
"Palaeocoma cylindrica" = Hallaster cylindricus Billings 1857 brittle star
Crinoidea
 Homocrinida - Cincinnaticrinidae
Cincinnaticrinus varibrachialus3 Warn and Strimple 1977 Sea lily
 Homocrinida - Homocrinidae
Ectenocrinus simplex3 Hall 1847 Sea lily
 Calceocrinida - Calceocrinidae
Cremacrinus inaequalis4 Billings 1859 Sea lily
 Disparida - Heterocrinidae
Heterocrinus simplex Hall 1847 Sea lily
 Inadunata - Merocrinidae
"Dendrocrinus conjugans" = Praecupulocrinus conjugans
"Dendrocrinus conjugans" = Praecupulocrinus conjugans Billings 1857 Sea lily
 Dendrocrinida - Dendrocrinidae
Dendrocrinus gregarius Sea lily
Central part of the Trenton Limestone
 Taxocrinida - Taxocrinidae
"Lecanocrinus laevis" = Protaxocrinus laevis, "Lecanocrinus elegans" = Protaxocrinus elegans
"Lecanocrinus laevis" = Protaxocrinus laevis Billings 1857 Sea lily
"Lecanocrinus elegans" = Protaxocrinus elegans Billings 1857 Sea lily
 Flexibilia - Cupulocrinidae
"Dendrocrinus humilis" = Cupulocrinus humilis
"Dendrocrinus humilis" = Cupulocrinus humilis Billings 1857 Sea lily
 Porocrinida -
Carabocrinus radiatus Billings 1857 Sea lily
Porocrinus conicus Billings 1857 Sea lily
"Dendrocrinus angulatus" = Palaeocrinus angulatus Billings 1857 Sea lily
"Palaeocrinus angulatus" = Palaeocrinus angulatus2 Billings 1857 Sea lily
 Hybocrinida - Hybocrinidae
Hybocrinus conicus Billings 1857 Sea lily
Hybocrinus tumidus Billings 1857 Sea lily
 Camerata - Reteocrinidae
Reteocrinus stellaris2 Billings 1859 Sea lily
 Diplobathrida - Cleiocrinidae
Cleiocrinus regius Billings 1857 Sea lily
 Diplobathrida - Rhodocrinitidae
"Thysanocrinus pyriformis" = Neoarchaeocrinus pyriformis, "Glyptocrinus lacunosus" = Archaeocrinus lacunosus, "Glyptocrinus marginatus" = Archaeocrinus marginatus, "Thysanocrinus microbasalis" = Archaeocrinus microbasalis
"Thysanocrinus pyriformis" = Neoarchaeocrinus pyriformis Billings 1857 Sea lily
"Glyptocrinus lacunosus" = Archaeocrinus lacunosus Billings 1857 Sea lily
Upper half of the Trenton Limestone
"Glyptocrinus marginatus" = Archaeocrinus marginatus Billings 1857 Sea lily
"Thysanocrinus microbasalis" = Archaeocrinus microbasalis Billings 1857 Sea lily
 Monobathrida - Glyptocrinidae
Periglyptocrinus priscus3 Billings 1857 Sea lily
Glyptocrinus ornatus Billings 1857 Sea lily
Upper half of the Trenton Limestone
 Rhombifera - Pleurocystitidae
"Pleurocystites elegans" = Pleurocystites filitextus Billings 1854